bmarechal / PM100_waist

Download as
Browse Code ยป

Commit b7e9005e06d121ee25fcf6c5e2becb8beebf5683

Authored by bmarechal
1 parent b869c4f31d
Exists in master

improve README !

Showing 1 changed file with 46 additions and 0 deletions Inline Diff

# PM100_waist 1 1 # PM100_waist
2 2
Make your waist measurment easy with a Thorlabs PM100D. 3 3 Make your waist measurment easy with a Thorlabs PM100D.
4
5 ## Setup
6 ```
7 ==============================
8 Prepare the setup
9 ==============================
10 laser PM100D
11 -->------------------] in W
12 |
13 |
14 |
15
16 knife at z and x=0mm
17
18 ==============================
19 move the knife and press enter
20 ==============================
21 laser PM100D
22 -->-----|------------] in W
23 |
24 |
25
26 knife at z and x+=0.05mm
27
28 ==============================
29 ```
30
31 ## Acquisition
32 `pm100d_waist.py` acquire the optical power along transverse section at *z* mm.
33
34 Create your measurement folder
35 `mkdir -p my/best/measurement && cd my/best/measurement`
36
37 Run the acquisition program with the `-o` option to set z=123mm as terminaison of the filename.
38 All the files will be saved in the current folder
39 `path/to/the/program/location/pm100d_waist.py -o 123`
40
41 Press *enter* to get a power value, and move the knife of 0.05 mm, repress enter and again and again and again and again and again and again...
42 When the section is done, enter the new z value in the prompt, the program will inform you that a new file is created.
43
44 At the end, press `CTRL + C` and enter to quit *properly*.
45
46 ## Post-processing
47 `fit_waist.py` fit each waist of each section and compute the *w0* and the *z0* of the beam.
48